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llvm-mirror/unittests/IR/DataLayoutTest.cpp
Michael Platings 228c3405e1 [IR][ARM] Add function pointer alignment to datalayout
Use this feature to fix a bug on ARM where 4 byte alignment is
incorrectly assumed.

Differential Revision: https://reviews.llvm.org/D57335

llvm-svn: 355685
2019-03-08 10:44:06 +00:00

48 lines
1.7 KiB
C++

//===- ConstantRangeTest.cpp - ConstantRange tests ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/DataLayout.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(DataLayoutTest, FunctionPtrAlign) {
EXPECT_EQ(0U, DataLayout("").getFunctionPtrAlign());
EXPECT_EQ(1U, DataLayout("Fi8").getFunctionPtrAlign());
EXPECT_EQ(2U, DataLayout("Fi16").getFunctionPtrAlign());
EXPECT_EQ(4U, DataLayout("Fi32").getFunctionPtrAlign());
EXPECT_EQ(8U, DataLayout("Fi64").getFunctionPtrAlign());
EXPECT_EQ(1U, DataLayout("Fn8").getFunctionPtrAlign());
EXPECT_EQ(2U, DataLayout("Fn16").getFunctionPtrAlign());
EXPECT_EQ(4U, DataLayout("Fn32").getFunctionPtrAlign());
EXPECT_EQ(8U, DataLayout("Fn64").getFunctionPtrAlign());
EXPECT_EQ(DataLayout::FunctionPtrAlignType::Independent, \
DataLayout("").getFunctionPtrAlignType());
EXPECT_EQ(DataLayout::FunctionPtrAlignType::Independent, \
DataLayout("Fi8").getFunctionPtrAlignType());
EXPECT_EQ(DataLayout::FunctionPtrAlignType::MultipleOfFunctionAlign, \
DataLayout("Fn8").getFunctionPtrAlignType());
EXPECT_EQ(DataLayout("Fi8"), DataLayout("Fi8"));
EXPECT_NE(DataLayout("Fi8"), DataLayout("Fi16"));
EXPECT_NE(DataLayout("Fi8"), DataLayout("Fn8"));
DataLayout a(""), b("Fi8"), c("Fn8");
EXPECT_NE(a, b);
EXPECT_NE(a, c);
EXPECT_NE(b, c);
a = b;
EXPECT_EQ(a, b);
a = c;
EXPECT_EQ(a, c);
}
} // anonymous namespace